Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters
The distribution, feeding and oxygen consumption of Calanus sinicus were studied in August 2001 on a transect across Yellow Sea Cold Bottom Waters (YSCBW) and two additional transects nearby. The distribution of C. sinicus adults and copepodites stage CV appeared to be well correlated with water tem...
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/2734 2024-09-15T17:46:19+00:00 Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters Li, C Sun, S Wang, R Wang, X 2004-07-01 http://ir.qdio.ac.cn/handle/337002/2735 https://doi.org/10.1007/s00227-004-1306-x 英语 eng MARINE BIOLOGY Li, C; Sun, S; Wang, R; Wang, X.Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters,MARINE BIOLOGY,2004,145(1):149-157 http://ir.qdio.ac.cn/handle/337002/2735 doi:10.1007/s00227-004-1306-x Diel Vertical Migration Pacific-ocean Inland Sea Antarctic Copepods Food Availability Marine Copepods Gut Clearance Chlorophyll Temperature Zooplankton Marine & Freshwater Biology Article 期刊论文 2004 ftchinacasciocas https://doi.org/10.1007/s00227-004-1306-x 2024-08-09T03:18:11Z The distribution, feeding and oxygen consumption of Calanus sinicus were studied in August 2001 on a transect across Yellow Sea Cold Bottom Waters (YSCBW) and two additional transects nearby. The distribution of C. sinicus adults and copepodites stage CV appeared to be well correlated with water temperature. They tended to concentrate in the YSCBW (>10,000 ind. m(-2)) to avoid high surface temperature. Gut pigment contents varied from 0.44 to 2.53 ng chlorophyll a equivalents (chl a equiv.) ind.(-1) for adults, and from 0.24 to 2.24 ng chl a equiv. ind.(-1) for CV copepodites. We found no relationship between gut pigment contents and the ambient chl a concentrations. Although the gut evacuation rate constants are consistent with those measured for other copepods, their low gut pigment contents meant an estimated daily herbivorous ingestion of <3% of body carbon in the YSCBW and <10% outside the YSCBW. However, based on estimates of clearance rates, C. sinicus feeds actively whether in the YSCBW or not, so the low ingestion rates probably reflect shortage of food. Oxygen consumption rates of C. sinicus ranged from 0.21 to 0.84 mul O-2 ind.(-1) h(-1), with high rates often associated with high temperature. From the oxygen consumption rates, daily loss of body carbon was estimated to be 4.0-13.7%, which exceeds our estimates of their carbon ingestion rates. C. sinicus was probably not in diapause, either within or outside the YSCBW, but this cold-water layer provides C. sinicus with a refuge to live through the hot, low-food summer. The distribution, feeding and oxygen consumption of Calanus sinicus were studied in August 2001 on a transect across Yellow Sea Cold Bottom Waters (YSCBW) and two additional transects nearby. The distribution of C. sinicus adults and copepodites stage CV appeared to be well correlated with water temperature. They tended to concentrate in the YSCBW (>10,000 ind. m(-2)) to avoid high surface temperature. Gut pigment contents varied from 0.44 to 2.53 ng chlorophyll a ... Article in Journal/Newspaper Antarc* Antarctic Copepods Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Marine Biology 145 1 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Diel Vertical Migration Pacific-ocean Inland Sea Antarctic Copepods Food Availability Marine Copepods Gut Clearance Chlorophyll Temperature Zooplankton Marine & Freshwater Biology |
spellingShingle |
Diel Vertical Migration Pacific-ocean Inland Sea Antarctic Copepods Food Availability Marine Copepods Gut Clearance Chlorophyll Temperature Zooplankton Marine & Freshwater Biology Li, C Sun, S Wang, R Wang, X Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
topic_facet |
Diel Vertical Migration Pacific-ocean Inland Sea Antarctic Copepods Food Availability Marine Copepods Gut Clearance Chlorophyll Temperature Zooplankton Marine & Freshwater Biology |
description |
The distribution, feeding and oxygen consumption of Calanus sinicus were studied in August 2001 on a transect across Yellow Sea Cold Bottom Waters (YSCBW) and two additional transects nearby. The distribution of C. sinicus adults and copepodites stage CV appeared to be well correlated with water temperature. They tended to concentrate in the YSCBW (>10,000 ind. m(-2)) to avoid high surface temperature. Gut pigment contents varied from 0.44 to 2.53 ng chlorophyll a equivalents (chl a equiv.) ind.(-1) for adults, and from 0.24 to 2.24 ng chl a equiv. ind.(-1) for CV copepodites. We found no relationship between gut pigment contents and the ambient chl a concentrations. Although the gut evacuation rate constants are consistent with those measured for other copepods, their low gut pigment contents meant an estimated daily herbivorous ingestion of <3% of body carbon in the YSCBW and <10% outside the YSCBW. However, based on estimates of clearance rates, C. sinicus feeds actively whether in the YSCBW or not, so the low ingestion rates probably reflect shortage of food. Oxygen consumption rates of C. sinicus ranged from 0.21 to 0.84 mul O-2 ind.(-1) h(-1), with high rates often associated with high temperature. From the oxygen consumption rates, daily loss of body carbon was estimated to be 4.0-13.7%, which exceeds our estimates of their carbon ingestion rates. C. sinicus was probably not in diapause, either within or outside the YSCBW, but this cold-water layer provides C. sinicus with a refuge to live through the hot, low-food summer. The distribution, feeding and oxygen consumption of Calanus sinicus were studied in August 2001 on a transect across Yellow Sea Cold Bottom Waters (YSCBW) and two additional transects nearby. The distribution of C. sinicus adults and copepodites stage CV appeared to be well correlated with water temperature. They tended to concentrate in the YSCBW (>10,000 ind. m(-2)) to avoid high surface temperature. Gut pigment contents varied from 0.44 to 2.53 ng chlorophyll a ... |
format |
Article in Journal/Newspaper |
author |
Li, C Sun, S Wang, R Wang, X |
author_facet |
Li, C Sun, S Wang, R Wang, X |
author_sort |
Li, C |
title |
Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
title_short |
Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
title_full |
Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
title_fullStr |
Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
title_full_unstemmed |
Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters |
title_sort |
feeding and respiration rates of a planktonic copepod (calanus sinicus) oversummering in yellow sea cold bottom waters |
publishDate |
2004 |
url |
http://ir.qdio.ac.cn/handle/337002/2735 https://doi.org/10.1007/s00227-004-1306-x |
genre |
Antarc* Antarctic Copepods |
genre_facet |
Antarc* Antarctic Copepods |
op_relation |
MARINE BIOLOGY Li, C; Sun, S; Wang, R; Wang, X.Feeding and respiration rates of a planktonic copepod (Calanus sinicus) oversummering in Yellow Sea Cold Bottom Waters,MARINE BIOLOGY,2004,145(1):149-157 http://ir.qdio.ac.cn/handle/337002/2735 doi:10.1007/s00227-004-1306-x |
op_doi |
https://doi.org/10.1007/s00227-004-1306-x |
container_title |
Marine Biology |
container_volume |
145 |
container_issue |
1 |
_version_ |
1810494359730126848 |